213441446 has 4 divisors (see below), whose sum is σ = 320162172. Its totient is φ = 106720722.

The previous prime is 213441439. The next prime is 213441451. The reversal of 213441446 is 644144312.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53360360 + ... + 53360363.

It is an arithmetic number, because the mean of its divisors is an integer number (80040543).

Almost surely, 2^213441446 is an apocalyptic number.

213441446 is a deficient number, since it is larger than the sum of its proper divisors (106720726).

213441446 is a wasteful number, since it uses less digits than its factorization.

213441446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106720725.

The product of its digits is 9216, while the sum is 29.

The square root of 213441446 is about 14609.6353821716. The cubic root of 213441446 is about 597.6215526236.

Adding to 213441446 its reverse (644144312), we get a palindrome (857585758).

The spelling of 213441446 in words is "two hundred thirteen million, four hundred forty-one thousand, four hundred forty-six".